Home / 268,831.44-403,334.64-128,601

Finding the Fourth Proportional to 268,831.44, 403,334.64 and 128,601

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Solution

The fourth proportional to 268,831.44, 403,334.64 and 128,601 is: 192,943.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,831.44 : 403,334.64 = 128,601 : x
  2. Step 2: Convert to fraction form
    268,831.44/403,334.64 = 128,601/x
  3. Step 3: Cross multiply
    268,831.44x = 403,334.64 × 128,601
  4. Step 4: Simplify right side
    268,831.44x = 51,869,238,038.64
  5. Step 5: Solve for x
    x = 51,869,238,038.64/268,831.44
  6. Step 6: Final answer
    x = 192,943.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.